PKOOEEDDTOS. 



SIXTY-SIXTH MEETING, November i, 1884. 



The President occupied the chair, and thirty-five members were 

 present. 



The President announced the death during the summer inter 

 mission of Mr. Blanchard F. Johnson and Mr. M. B. W. Hou<*h, 

 active members of the Society. 



He also gave notice that those present were invited to partake, 

 at the close of the meeting, of a collation that had been spread in 

 an adjoining room. It was explained that a number of members 

 were desirous of introducing this new feature at the meetings of 

 the Society, in order to promote social, as well as scientific, 

 intercourse between the members, and that a committee had been 

 appointed to report upon the subject. 



Mr. William H. Dall made a communication upon the ZOO 

 LOGICAL POSITION OF TURBINELLA,* stating as his conclusions 

 that Turbinella proper, as typified by T. pyrum, was closely 

 related to the group typified by Cynodonta cornigera; and that 

 the investigation of the soft parts, hitherto unknown, corroborated 

 previous conclusions from the shell. 



Dr. T. H. Bean exhibited specimens of A CHIM^ERID FISH 

 NEW TO THE WESTERN ATLANTIC, obtained from deep water 

 during the summer of 1884 by the Fish Commission Steamer 

 Albatross, and explained its relations to described species. 



Mr. John A. Ryder, in a paper entitled THE DEVELOPMENT OF 

 THE SUNFISH, MoLA,f stated his belief that Molacanthus was 

 merely a stage in the development of Mola. 



* 1885. DALL, W. H. On Turbinella pyrum, Lamarck, and its den 

 tition. <Proc. U. S. Nat. Mus., viii, pp. 345-348, pi. xix. 



t Chapter viii of a paper entitled On the Origin of Heterocercy and the 

 Evolution of the Fins and Fin-rays of Fishes. (In press). 



XXIX 



